Adding optional check on the consistency of the ALTRO payload. By default it is on...
[u/mrichter/AliRoot.git] / MUON / MUONAlignment.C
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af9df62e 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/* $Id$ */
17
e54bf126 18/// \ingroup macros
19/// \file MUONAlignment.C
20/// \brief Macro for MUON alignment using physics tracks.
21///
22/// The macro uses the AliMUONAlignment class to calculate the alignment parameters.
23/// An array for the alignment parameters is created and can be filled with
24/// initial values that will be used as starting values by the alignment
25/// algorithm.
26///
27/// By default the macro run over galice.root in the working directory. If a file list
28/// of galice.root is provided as third argument the macro will run over all files.
29/// The macro loop over the files, events and tracks. For each track
30/// AliMUONAlignment::ProcessTrack(AliMUONTrack * track) and then
31/// AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t
32/// lSingleFit) are called. After all tracks have been procesed and fitted
33/// AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls)
34/// is called. The array parameters contains the obatained misalignement parameters.
35/// A realigned geometry is generated in a local CDB.
36///
37/// \author: B. Becker and J. Castillo
af9df62e 38
2688ea9b 39#if !defined(__CINT__) || defined(__MAKECINT__)
40
41#include "AliMUONAlignment.h"
42#include "AliMUONTrack.h"
43#include "AliMUONTrackExtrap.h"
44#include "AliMUONTrackParam.h"
45#include "AliMUONGeometryTransformer.h"
103e6575 46#include "AliMUONESDInterface.h"
47
61fed964 48#include "AliESDEvent.h"
49#include "AliESDMuonTrack.h"
f7a1cc68 50#include "AliMagF.h"
2688ea9b 51#include "AliTracker.h"
52#include "AliCDBManager.h"
53#include "AliCDBMetaData.h"
54#include "AliCDBId.h"
a02fe82d 55#include "AliGeomManager.h"
2688ea9b 56
57#include <TString.h>
2688ea9b 58#include <TError.h>
59#include <TH1.h>
60#include <TGraphErrors.h>
61#include <TFile.h>
61fed964 62#include <TTree.h>
2688ea9b 63#include <TClonesArray.h>
64#include <Riostream.h>
65
66#include <fstream>
67
68#endif
69
61fed964 70void MUONAlignment(Int_t nEvents = 100000, char* geoFilename = "geometry.root", TString esdFileName = "AliESDs.root", TString fileList = "")
af9df62e 71{
72
59830a87 73 // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
a02fe82d 74 if ( ! AliGeomManager::GetGeometry() ) {
75 AliGeomManager::LoadGeometry(geoFilename);
76 if (! AliGeomManager::GetGeometry() ) {
77 Error("MUONAlignment", "getting geometry from file %s failed", geoFilename);
59830a87 78 return;
79 }
80 }
81
82 // set mag field
83 // waiting for mag field in CDB
f7a1cc68 84 if (!TGeoGlobalMagField::Instance()->GetField()) {
85 printf("Loading field map...\n");
86 AliMagF* field = new AliMagF("Maps","Maps",2,1.,1., 10.,AliMagF::k5kG);
87 TGeoGlobalMagField::Instance()->SetField(field);
88 }
59830a87 89 // set the magnetic field for track extrapolations
f7a1cc68 90 AliMUONTrackExtrap::SetField();
59830a87 91
af9df62e 92 Double_t parameters[3*156];
93 Double_t errors[3*156];
94 Double_t pulls[3*156];
95 for(Int_t k=0;k<3*156;k++) {
96 parameters[k]=0.;
97 errors[k]=0.;
98 pulls[k]=0.;
99 }
100
101 Double_t trackParams[8] = {0.,0.,0.,0.,0.,0.,0.,0.};
102
af9df62e 103 // Set initial values here, good guess may help convergence
104 // St 1
2688ea9b 105 // Int_t iPar = 0;
106 // parameters[iPar++] = 0.010300 ; parameters[iPar++] = 0.010600 ; parameters[iPar++] = 0.000396 ;
af9df62e 107
108 bool bLoop = kFALSE;
109 ifstream sFileList;
110 if (fileList.Contains(".list")) {
111 cout << "Reading file list: " << fileList.Data() << endl;
112 bLoop = kTRUE;
113
114 TString fullListName(".");
115 fullListName +="/";
116 fullListName +=fileList;
117 sFileList.open(fileList.Data());
118 }
119
120 TH1F *fInvBenMom = new TH1F("fInvBenMom","fInvBenMom",200,-0.1,0.1);
121 TH1F *fBenMom = new TH1F("fBenMom","fBenMom",200,-40,40);
122
123 AliMUONAlignment* alig = new AliMUONAlignment();
124 alig->InitGlobalParameters(parameters);
125
a02fe82d 126 AliMUONGeometryTransformer *transform = new AliMUONGeometryTransformer();
127 transform->LoadGeometryData();
af9df62e 128 alig->SetGeometryTransformer(transform);
7f8c1308 129
130 // Do alignment with magnetic field off
131 alig->SetBFieldOn(kFALSE);
587965bd 132
133 // Set tracking station to use
134 Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
d8ad38e5 135 Bool_t bChOnOff[10] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
587965bd 136
f3e4edfb 137 // Set degrees of freedom to align (see AliMUONAlignment)
138 alig->AllowVariations(bChOnOff);
139
587965bd 140 // Fix parameters or add constraints here
d8ad38e5 141// for (Int_t iSt=0; iSt<5; iSt++)
142// if (!bStOnOff[iSt]) alig->FixStation(iSt+1);
143 for (Int_t iCh=0; iCh<10; iCh++)
144 if (!bChOnOff[iCh]) alig->FixChamber(iCh+1);
587965bd 145
146 // Left and right sides of the detector are independent, one can choose to align
147 // only one side
148 Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE};
d8ad38e5 149 alig->FixHalfSpectrometer(bChOnOff,bSpecLROnOff);
150
151 alig->SetChOnOff(bChOnOff);
152 alig->SetSpecLROnOff(bChOnOff);
587965bd 153
154 // Set predifined global constrains: X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY
155 Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE};
156 Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE};
d8ad38e5 157 alig->AddConstraints(bChOnOff,bVarXYT,bDetTLBR,bSpecLROnOff);
587965bd 158
af9df62e 159
160 char cFileName[100];
7f8c1308 161
af9df62e 162 Int_t lMaxFile = 1000;
163 Int_t iFile = 0;
587965bd 164 Int_t iEvent = 0;
af9df62e 165 bool bKeepLoop = kTRUE;
587965bd 166 Int_t iTrackTot=0;
167 Int_t iTrackOk=0;
168
af9df62e 169 while(bKeepLoop && iFile<lMaxFile){
170 iFile++;
171 if (bLoop) {
172 sFileList.getline(cFileName,100);
173 if (sFileList.eof()) bKeepLoop = kFALSE;
174 }
175 else {
61fed964 176 sprintf(cFileName,esdFileName.Data());
af9df62e 177 bKeepLoop = kFALSE;
178 }
61fed964 179 if (!strstr(cFileName,"AliESDs.root")) continue;
af9df62e 180 cout << "Using file: " << cFileName << endl;
61fed964 181
182 // load ESD event
183 TFile* esdFile = TFile::Open(cFileName); // open the file
184 if (!esdFile || !esdFile->IsOpen()) {
185 cout << "opening ESD file " << cFileName << "failed" << endl;
186 continue;
187 }
188 TTree* esdTree = (TTree*) esdFile->Get("esdTree"); // get the tree
189 if (!esdTree) {
190 cout << "no ESD tree found" << endl;
191 esdFile->Close();
192 continue;
193 }
194 AliESDEvent* esdEvent = new AliESDEvent(); // link ESD event to the tree
195 esdEvent->ReadFromTree(esdTree);
7f8c1308 196
61fed964 197 Int_t nevents = esdTree->GetEntries();
587965bd 198 cout << "... with " << nevents << endl;
af9df62e 199 for(Int_t event = 0; event < nevents; event++) {
587965bd 200 if (iEvent >= nEvents){
201 bKeepLoop = kFALSE;
202 break;
203 }
204 iEvent++;
205
61fed964 206 if (esdTree->GetEvent(event) <= 0) {
207 cout << "fails to read ESD object for event " << event << endl;
208 continue;
209 }
7f8c1308 210
61fed964 211 Int_t nTracks = Int_t(esdEvent->GetNumberOfMuonTracks());
212 if (!event%100) cout << " there are " << nTracks << " tracks in event " << event << endl;
213 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
214 AliESDMuonTrack* esdTrack = esdEvent->GetMuonTrack(iTrack);
215 if (!esdTrack->ClustersStored()) continue;
216 Double_t invBenMom = esdTrack->GetInverseBendingMomentum();
af9df62e 217 fInvBenMom->Fill(invBenMom);
218 fBenMom->Fill(1./invBenMom);
219 if (TMath::Abs(invBenMom)<=1.04) {
103e6575 220 AliMUONTrack track;
ad3c6eda 221 AliMUONESDInterface::ESDToMUON(*esdTrack, track);
61fed964 222 alig->ProcessTrack(&track);
af9df62e 223 alig->LocalFit(iTrackOk++,trackParams,0);
224 }
587965bd 225 iTrackTot++;
af9df62e 226 }
227 }
61fed964 228 delete esdEvent;
229 esdFile->Close();
587965bd 230 cout << "Processed " << iTrackTot << " Tracks so far." << endl;
af9df62e 231 }
232 alig->GlobalFit(parameters,errors,pulls);
233
234 cout << "Done with GlobalFit " << endl;
235
236 // Store results
237 Double_t DEid[156] = {0};
238 Double_t MSDEx[156] = {0};
239 Double_t MSDEy[156] = {0};
240 Double_t MSDExt[156] = {0};
241 Double_t MSDEyt[156] = {0};
242 Double_t DEidErr[156] = {0};
243 Double_t MSDExErr[156] = {0};
244 Double_t MSDEyErr[156] = {0};
245 Double_t MSDExtErr[156] = {0};
246 Double_t MSDEytErr[156] = {0};
247 Int_t lNDetElem = 4*2+4*2+18*2+26*2+26*2;
248 Int_t lNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26};
2688ea9b 249 // Int_t lSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156};
af9df62e 250 Int_t idOffset = 0; // 400
251 Int_t lSDetElemCh = 0;
252 for(Int_t iDE=0; iDE<lNDetElem; iDE++){
253 DEidErr[iDE] = 0.;
254 DEid[iDE] = idOffset+100;
255 DEid[iDE] += iDE;
256 lSDetElemCh = 0;
257 for(Int_t iCh=0; iCh<9; iCh++){
258 lSDetElemCh += lNDetElemCh[iCh];
259 if (iDE>=lSDetElemCh) {
260 DEid[iDE] += 100;
261 DEid[iDE] -= lNDetElemCh[iCh];
262 }
263 }
264 MSDEx[iDE]=parameters[3*iDE+0];
265 MSDEy[iDE]=parameters[3*iDE+1];
266 MSDExt[iDE]=parameters[3*iDE+2];
267 MSDEyt[iDE]=parameters[3*iDE+2];
268 MSDExErr[iDE]=(Double_t)alig->GetParError(3*iDE+0);
269 MSDEyErr[iDE]=(Double_t)alig->GetParError(3*iDE+1);
270 MSDExtErr[iDE]=(Double_t)alig->GetParError(3*iDE+2);
271 MSDEytErr[iDE]=(Double_t)alig->GetParError(3*iDE+2);
272 }
273
274 cout << "Let's create graphs ... " << endl;
275
276 TGraphErrors *gMSDEx = new TGraphErrors(lNDetElem,DEid,MSDEx,DEidErr,MSDExErr);
277 TGraphErrors *gMSDEy = new TGraphErrors(lNDetElem,DEid,MSDEy,DEidErr,MSDEyErr);
278 TGraphErrors *gMSDExt = new TGraphErrors(lNDetElem,DEid,MSDExt,DEidErr,MSDExtErr);
279 TGraphErrors *gMSDEyt = new TGraphErrors(lNDetElem,DEid,MSDEyt,DEidErr,MSDEytErr);
280
281 cout << "... graphs created, open file ... " << endl;
282
283 TFile *hFile = new TFile("measShifts.root","RECREATE");
284
285 cout << "... file opened ... " << endl;
286
287 gMSDEx->Write("gMSDEx");
288 gMSDEy->Write("gMSDEy");
289 gMSDExt->Write("gMSDExt");
290 gMSDEyt->Write("gMSDEyt");
291 fInvBenMom->Write();
292 fBenMom->Write();
293 hFile->Close();
294
295 cout << "... and closed!" << endl;
296 // Re Align
297 AliMUONGeometryTransformer *newTransform = alig->ReAlign(transform,parameters,true);
298 newTransform->WriteTransformations("transform2ReAlign.dat");
299
300 // Generate realigned data in local cdb
2688ea9b 301 const TClonesArray* array = newTransform->GetMisAlignmentData();
4818a9b7 302
303 // 100 mum residual resolution for chamber misalignments?
304 alig->SetAlignmentResolution(array,-1,0.01,0.01,0.004,0.003);
af9df62e 305
306 // CDB manager
307 AliCDBManager* cdbManager = AliCDBManager::Instance();
308 cdbManager->SetDefaultStorage("local://ReAlignCDB");
309
310 AliCDBMetaData* cdbData = new AliCDBMetaData();
311 cdbData->SetResponsible("Dimuon Offline project");
312 cdbData->SetComment("MUON alignment objects with residual misalignment");
d8ad38e5 313 AliCDBId id("MUON/Align/Data", 0, AliCDBRunRange::Infinity());
2688ea9b 314 cdbManager->Put(const_cast<TClonesArray*>(array), id, cdbData);
af9df62e 315
61fed964 316}
317